2565004 has 24 divisors (see below), whose sum is σ = 4889808. Its totient is φ = 1170240.

The previous prime is 2564999. The next prime is 2565007. The reversal of 2565004 is 4005652.

It is not an unprimeable number, because it can be changed into a prime (2565007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5334 + ... + 5794.

It is an arithmetic number, because the mean of its divisors is an integer number (203742).

2^2565004 is an apocalyptic number.

It is an amenable number.

2565004 is a deficient number, since it is larger than the sum of its proper divisors (2324804).

2565004 is a wasteful number, since it uses less digits than its factorization.

2565004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 2565004 is about 1601.5629865853. The cubic root of 2565004 is about 136.8871502179.

The spelling of 2565004 in words is "two million, five hundred sixty-five thousand, four".